Pro Mount allows you to attach your POV cameras securely to your tubular cages, bumpers and handlebars. Kevlar Infused polyurethane spacers dampen vibration without scratching any finish. Each kit fits round 7/8 inch, 1-1/2 inch, 1-3/4 inch, and 2 inch tubing. The combination of the s American made super durable Kevlar isolators and aluminum hardware makes these the strongest POV mounts on the market today. Keep your POV camera on the action with the Pro Mount.